Using the navigation map, our team and the community reviewed 38,658 turn restrictions signs from Mapillary, out of which there were 18,565 valid, 11,924 redundant and 7,989 invalid turn restrictions.

We'd like to announce Mapbox will no longer maintain this tool and will no longer work from today. This is an open source project, if you'd like to run a similar project or re-use this, you can find all the information in the repository. Thank you to all the contributors!